* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.date-display {
    color: #7f8c8d;
    font-size: 1.1rem;
}

.schedule-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#taskInput {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

#timeInput {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

button {
    padding: 10px 15px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #2980b9;
}

.schedule-list {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.task-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid #eee;
}

.task-item:last-child {
    border-bottom: none;
}

.task-info {
    flex: 1;
}

.task-time {
    font-weight: bold;
    color: #2c3e50;
    margin-right: 15px;
    min-width: 70px;
}

.task-text {
    color: #34495e;
}

.delete-btn {
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 5px 10px;
    cursor: pointer;
}

.delete-btn:hover {
    background-color: #c0392b;
}

@media (max-width: 600px) {
    .schedule-form {
        flex-direction: column;
    }
    
    .task-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .task-info {
        margin-bottom: 10px;
        width: 100%;
    }
}